Home / 278,582.86-384,452.22-163,869.85

Finding the Fourth Proportional to 278,582.86, 384,452.22 and 163,869.85

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Solution

The fourth proportional to 278,582.86, 384,452.22 and 163,869.85 is: 226,145.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,582.86 : 384,452.22 = 163,869.85 : x
  2. Step 2: Convert to fraction form
    278,582.86/384,452.22 = 163,869.85/x
  3. Step 3: Cross multiply
    278,582.86x = 384,452.22 × 163,869.85
  4. Step 4: Simplify right side
    278,582.86x = 63,000,127,623.57
  5. Step 5: Solve for x
    x = 63,000,127,623.57/278,582.86
  6. Step 6: Final answer
    x = 226,145.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.